Town Hall Address 14 E. Cross St. Potsdam, OH 45361 United States- Miami County Zoning (937) 335-4555 14 E. Cross St. Potsdam, OH 45361 United States Town Clerk (937) 335-4555 14 E. Cross St. Potsdam, OH 45361 United States Water (937) 440-5653 2200 North County Road 25-A Troy, OH 45373 United States Sewer (937) 440-5653 2200 North County Road 25-A Troy, OH 45373 United States Tax Collector (937) 335-4555 14 E. Cross St. Potsdam, OH 45361 United States Code Enforcement (937) 335-4555 14 E. Cross St. Potsdam, 45361 United States County Miami